package main

type Music struct {
}

func (m Music) tune(i Instrument) {
	i.play(MIDDLE_C)
}

func (m Music) adjust(i Instrument) {
	i.adjust()
}

func (m Music) tuneAll(i []Instrument) {
	for _, e := range i {
		m.tune(e)
		m.adjust(e)
	}
}
